The God of War in the Dimensional World

When I woke up, I saw huge twin moons in my eyes, and I had basically nothing except a set of clothes? At least you can give me a survival guide! Looking at the wrench in my hand and the somewhat old windbreaker I was wearing, I knelt down. Then I wandered around, obviously just trying to survive, but I inexplicably started the journey of being a younger brother! ? When I discovered that I had the ability to travel freely around the world...